Within a large TI-Pharma project "Prograft" Glycostem and partners are working on a new culture method to increase the number of stem cells available for transplant. Finally, the expanded stem cells are tested in a cilical trial of fifteen patients. A second part of the study focuses on the visualization of the efficacy of the treatment. The stem cells are labeled with metal spheres, so that they can be seen on an MRI scan. Although the technique already exists, it will be applied in this manner for the first time during the ProGraft study.